Self and michael o neil



@uiten tetra jgetint @fitta GHARLESOOLBY, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO HIM-v SELF AND MIGHAEL ONEIL, OF SAME PLACE. *i Letters .Patent No. 70,959, dated November 19, 1867.

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TO ALL WHOM IT MAY CONCERN: Be it known that I, CHARLES COLBY, of San Francisco, county of San Francisco, State of California, have invented certain new and useful Improvements in Churns; and I do hereby declare the following description and accompanying drawings are suiicient to enable any person skilled in the art or science to which it most nearly appertaius to make and use my said invention or improvement without further invention or experiment. My invention relates to churns, and consists in providing a more eicacious method of dividing and agitating the particles of cream by a system of rotary dashers or arms operating in contrary directions, the one within the other.V This is done by constructing a churn with a circular barrel having a shaft passing longitudinally through its centre, at-one'end of which is a pinion operated by a gear-wheel on the driving-shaft. This central axis carries a set of arms ordashers. Another set of dashers is carried ina contrary direction by a gear and H pinion at the other end, their supporting arms being so long that they revolve outside the iirst-meutioned'dashers. i To more fully explain my invention, reference is had to the accompanying drawings, forming a part of this specification, of which-l- Figure 1 is an end view. Figure 2, an end secional elevation taken through x z. Figure 3 is a. plan. Similar letters of reference indicate like parts in each of the figures. f if" L is the cylinder orbarrel of the churn, having the ends or li'eads A A, which are carried down so as to serve as supporters upon which it is to rest. B is the driving-shaft, having at one end the geared wheel C and at the other the wheel D. The wheel C `has its teeth on the inside, and drives the pinion E which turns the shaft G in thesalne direction with lthe shaft` B. The arms 1I I-I H are attached to the shaft G, revolving with it, and serving as dashers. The wheel D turns the pinion F, and, by means of a short shaft, operates the arms I I I I which carry the dashers K K. These dashers'turn outside of the arm H II, and in a contrary direction, s o that the cream is thoroughly agitated. The shaft G turns inside the short shaft which carries the arms I I I I. The ventilator at the top of the churn has a cup-shaped opening, a, which catches and returns any cream Y which may have been thrown out. A

I claim the combination and arrangement of the' driving-shaft B, gears() and E, with gears D and'F at the i opposite end of Vthe churn, with the da'shers H and K and barrel L, all as described, for the purpose set forth.

In witness whereof I have hereunto set myhand and seal.

` CHARLES GOLBY. [L 5.]

Witnesses: pff M. S. ONEIL,

C. W. M. SMITH. 

